Nut-locking washer.



J. GAINE.

NUT LOCKING WASHER. I APPLICATION FILED MAR. 19, 1909.

Patented Sept. 14, 1909.

UNITED ST.

JOHN B. CAINE, OF BELLINGHAM, WASHINGTON.

NUT-LOCKING WASHER.

To all whom it may concern:

Be it known that 1, JOHN B. CAINE, a citizen of the United States ofAmerica, residing at Bellingham. Vashington, have invented a new anduseful. Nut-Lock Washer, of which the following is a specification.

This invention relates to a nut lock washer and has for its object theprovision of a simple and efficient means for securing a nut againstslacking back and one that is susceptible ot' a variety of applicationswhether on wood or iron.

The invention is particularly described in the following specificationand illustrated by the drawings by which it is accompanied, in which;

Figure 1. is a plan of the washer, the position of the nut beingindicated by dot and dash lines, Fig. 2. a side elevation of the samewith the engaging point turned down Fig. 3. a cross section on the lineA A in Fig. 1 showing the resilient check for securing the nut lockmember and Figs. 4 and 0 show the application of the lock washer tosecure the nut of an ordinary bearing box and as applied to a washerplate.

In these drawings 2 represents an ordinary ring washer to be placedunder a nut and having a projection 8 from one side which is produced toform a flattened point as at 3 which when required may be bent down asshown in Fig. 2. To this projection 8 is pivotally connected by a rivet4 a nut engaging member 5 upwardly turned at the end which is designedto engage the nut. Riveted or otherwise secured to the under side of theprojection 8 is a thin resilient check member 6 which is carried acrossthe upper side of the nut engaging member 5 and its free end isdownwardly and upwardly turned as at 7 to hold the nut engaging memberin the position of engagement with the side of the nut and that willpermit the nutengaging member to be moved clear of the nut while it isbeing turned. Where the washer is applied to a surface having an upwardprojec- Specification of Letters Patent.

Application filed March 19, 1909.

Patented Sept. 14, 1909.

Serial No. 484,581.

tion adjacent the point 3 need not be turned down as it may be placedto. engage such upward projection and prevent rotation. Such anapplication is shown in Fig. it where the washer is applied to securethe nut of an ordinary bearing box. \Vhere however the washer is appliedto wood, or to a washer plate as shown in Fig. 5, the point may beturned down so that itwill enter the wood or engage the edge of thewasher plate and prevent rotation of the washer backward. 'Where' it isapplied to a metal plate of such width that the downwardly projectingpoint cannot engage the edge of the plate an in dentation may be made inthe plate with a center punch and the point 3 turned down to engage it.

A simple and efficient nut lock washer is thus provided that issusceptible of application to a variety of conditions and wherein thelock engaging member is checked against moving free from such engagementsave when required.

Having now particularly described my invention and the manner of its useI hereby declare that what I claim as new and desire to be protected inby Letters Patent is:

A nut lock washer comprising in combination a flatwasher having aprojection from one side terminating in a flattened point, a nutengaging member pivotally secured to this projection and a resilientcheck member secured to the under side of the projection and bentoverthe nut engaging member the free end of the check member beingdownwardly and upwardly bent to permit the nut engaging member to bemoved into position to engage a nut and that will retain it when in thatposition.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN B. CAINE.

Signed in the presence ot ROWLAND BRlTTAIN,

A. G. WVooLsEY.

